/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.zookeeper.client;

import java.util.Objects;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;

@InterfaceAudience.Private
class ChrootWatcher implements Watcher {
    private final Chroot.NotRoot chroot;
    private final Watcher watcher;

    public ChrootWatcher(Chroot.NotRoot chroot, Watcher watcher) {
        this.chroot = chroot;
        this.watcher = watcher;
    }

    @Override
    public boolean equals(Object other) {
        if (other instanceof ChrootWatcher) {
            return chroot.equals(((ChrootWatcher) other).chroot) && watcher.equals(((ChrootWatcher) other).watcher);
        }
        return false;
    }

    @Override
    public int hashCode() {
        return Objects.hash(chroot, watcher);
    }

    @Override
    public void process(WatchedEvent event) {
        String path = event.getPath();
        if (path != null) {
            path = chroot.strip(path);
            event = new WatchedEvent(event.getType(), event.getState(), path, event.getZxid());
        }
        watcher.process(event);
    }
}
